NL INDUSTRIES INC — Director's Dealing 2006

Jul 19, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NL INDUSTRIES INC (NL)
CIK: 0000072162
Period of Report: 2006-07-17

Reporting Person: SIMMONS HAROLD C (Director, Chairman of the Board & CEO, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-07-17	Common stock $0.125 par value	P	1400	$9.29	Acquired	446500	Direct
2006-07-17	Common stock $0.125 par value	P	1500	$9.32	Acquired	448000	Direct
2006-07-17	Common stock $0.125 par value	P	7500	$9.35	Acquired	455500	Direct
2006-07-17	Common stock $0.125 par value	P	200	$9.40	Acquired	455700	Direct
2006-07-17	Common stock $0.125 par value	P	4800	$9.42	Acquired	460500	Direct
2006-07-17	Common stock $0.125 par value	P	1900	$9.44	Acquired	462400	Direct
2006-07-17	Common stock $0.125 par value	P	2500	$9.45	Acquired	464900	Direct
2006-07-17	Common stock $0.125 par value	P	2500	$9.49	Acquired	467400	Direct
2006-07-17	Common stock $0.125 par value	P	16000	$9.50	Acquired	483400	Direct
2006-07-17	Common stock $0.125 par value	P	3200	$9.46	Acquired	486600	Direct
2006-07-17	Common stock $0.125 par value	P	3000	$9.48	Acquired	489600	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common stock $0.125 par value	256575	Indirect
Common stock $0.125 par value	40350931	Indirect
Common stock $0.125 par value	222100	Indirect

Footnotes

F1: Directly held by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of these shares.

F2: Directly held by Valhi, Inc. See the Additional Information filed as an exhibit to this statement for a description of the
relationships among the persons joining in this filing.

F3: Directly held by TIMET Finance Management Company. See the Additional Information filed as an exhibit to this statement for
a description of the relationships among the persons joining in this filing.